As part of an attempt to enforce C/C++ coding style at work I'm running our .c source files through Artistic Style and generating an HTML difference report between the original source file and autoformatted file using Beyond Compare. Beyond Compare conveniently highlights minor differences (whitespace, alignment, comments, etc.) in blue, but for whitespace in particular it's difficult to tell when Artistic Style has changed things (e.g. swapping spaces for tabs).
I know most IDEs have an option to display whitespace characters, but I can't seem to find an equivalent Chrome extension that would do the same thing in the browser. Has anyone else run into any extensions that can display whitespace, either on Chrome or some other browser?